Industry sector has an important impact on primary energy consumption at the international level, and solar energy constitutes a real alternative to cover these energy needs partially. Among thermosolar concentration technologies, Linear Fresnel Collector (LFC) technology has some advantages that make it more accessible to industries. With the aim of providing new tools for easier decision-making processes, in the present work, several energy audits were carried out in industries (located in the south-west of Europe, with considerable steam consumptions), quantifying thermal and energy consumptions and defining both work schedules and seasonality. Afterwards, a comparison based on three factors was carried out: Thermal consumption regarding total industry consumption, the performance of the work during the solar schedule, and the quantification of the monthly average concentrated energy for a certain LFC facility. The analysis carried out according to these criteria showed different results for each case, making a global assessment necessary to suitably ponder each factor. This analysis ranked tomato industries as the most suitable for LFC technology, due to the fact that their main operating period was during the months with the highest solar isolation, and the solar schedule was completely integrated in a 24-h working day. Also, industrial waxes and laundries showed a good combination of both facts.Energies 2019, 12, 4049 2 of 15 26% of primary energy consumption [16]. Furthermore, heat generation processes in industry constitute 54% of the total energy consumption in Europe in contrast with 17% of the total energy consumption corresponding to electric uses. This proportion of energy use justifies the implementation of solar thermal-based systems [17].Solar thermal systems harness solar energy for heating, either as hot water for domestic use-domestic hot water and heating-as a heating source for fluids in industrial processes or as steam to produce mechanical energy in a turbine to obtain electrical energy. Solar thermal systems may have concentrators to direct solar isolation that strikes the capturing surface area towards a smaller area (absorber area). This configuration obtains higher temperatures in the heat transfer fluid. These devices achieve solar concentration using specular reflection; thus, only direct isolation is used.There are two different technologies that concentrate direct solar isolation: Point focus type, that concentrates isolation into a single point-solar power tower or Dish-Stirling system-and linear focus type, which concentrates isolation into a linear receptor. Linear focus type reaches higher temperatures, because it concentrates isolation into a larger area. There are two types of linear focus collectors: Parabolic trough collector (PTC) and linear Fresnel collectors [18,19].Several studies have shown LFC (Linear Fresnel Collector) optical quality and thermal efficiency is slightly lower than in the case of PTC, due to the high influence of the angle of incidence and the cosine fa...